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Finding the Fourth Proportional to 67,848.30, 101,881.80 and 45,759.60

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Solution

The fourth proportional to 67,848.30, 101,881.80 and 45,759.60 is: 68,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,848.30 : 101,881.80 = 45,759.60 : x
  2. Step 2: Convert to fraction form
    67,848.30/101,881.80 = 45,759.60/x
  3. Step 3: Cross multiply
    67,848.30x = 101,881.80 × 45,759.60
  4. Step 4: Simplify right side
    67,848.30x = 4,662,070,415.28
  5. Step 5: Solve for x
    x = 4,662,070,415.28/67,848.30
  6. Step 6: Final answer
    x = 68,713.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.